google/pull-request-mailer — pull request #17 by nh2 (2014-11-11 17:59:32+00:00)
Title: Switch scotty to production mode. Fixes #5.

From
http://hackage.haskell.org/package/scotty-0.9.0/docs/Web-Scotty.html

"Scotty is set up by default for development mode.
For production servers, you will likely want to modify `settings`
and the `defaultHandler`.
"

We don't care about the "FD cache duration" mentioned in `settings`,
but we do want to add `defaultHandler` to not expose the contents
of IOExceptions to clients.